From 353a4224b3951be76bbc19bc043d24bfaf0590f6 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Tue, 16 Mar 2010 14:15:12 +0100
Subject: Fix TTY detection

---
 src/utils.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/utils.c b/src/utils.c
index 6abe6237..70fd1453 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -12,6 +12,7 @@
 #include <math.h>
 #include <string.h>
 #include <stdio.h>
+#include <unistd.h>
 
 #include "utils.h"
 #include "image.h"
@@ -51,7 +52,7 @@ void progress_bar(int val, int total, const char *text)
 	char s[1024];
 	const int width = 50;
 
-	if ( !isatty(stderr) ) return;
+	if ( !isatty(fileno(stderr)) ) return;
 
 	frac = (double)val/total;
 	n = (int)(frac*width);
-- 
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